Calculating device



June 1, 1948.

R. MUMMA CALCULATING DEVICE 22 Sheets-Sheet 1 Filed Dec. 2'7, 1943 BY6%,?) M

HIS ATTORNEY w Av /H H June 1, 1948. R. E. MUMMA 2,442,423

CALCULATING DEVICE Filed D80. 27, 1943 22 Sheets-Sheet 2 ACCUMULATORTENS FIG. 2

INVENTOR ROBE/77E. MUMMA HIS ATTORNEY June 1, 1948.

F 'iIed Dec. 27, -194:5

ACCUMULATOR HUNDREDS FIG. 3

R. E. MUMMA CALCULATING DEVICE 22 Sheets-Sheet 3 INVEWOR ROBERT E. UAMMBYZ W HIS ATTORNEY June 1, 1948. R. E. MUMMA CALCULATING DEVICE 22Sheets-Sheet 4 Filed Dec. 27, 1943 INVENTOR ROBERT E. MUMMA HIS ATTORNEYJune E, 1948. R. E. MUMMA CALCULATING DEVICE 22 Sheets-Sheet 5 FiledDec. 27, 1943 W i 32 3305 zm; I 525233 INVENTOR ROBERT E. MUMMA M m HISATTORNEY R. E. MUMMA 2,442,428

CALCULATING DEV I CE Filed Dec. 27, 1943 22 SheetsSheet 6 ACCUMULATORHUNDRED THOUSANDS INVENTOR ROBE I? T E. MUMMA HIS ATTORNEY A M M U M E RCALCULATING DEVICE 22 Sheets-Sheet 7 Filed Dec. 27, 1943 INVENTOR ROBERTE. fill/"MA BY M HIS ATTORNEY June 1, 1948. R. E. MUMMA 2,442,428

I CALCULATING- DEVICE I 7 Filed Dec. 27, 1943 22 Sheets-Sheet 8,

ACCUMULATOR- TEN MILLIONS -.L

FIG.8

' mvsmon ROBE/i T E. MUMMA BYMM HIS ATTORNEY swab FIG. 9 TALLY IMPULSEGENERATOR THOUSANDS ems-1L msqL 3e 1, 1948. R. E. MUMMA 2,442,428

CALCULATING DEVICE FilBd D60- 27, 1943 22 Sheets-Sheet 9 INVENTOR ROBERTE. MUMHA BY 2 i HIS ATTORNEY June 1, 1948. R. E. MUMMA 2,442,423

CALCULATING DEVICE Filed D90. 27, 1943 22 Sheets-Sheet 10 TALLY IMPULSEGENERATOR HUNDREDS il- Fl g 3 flomwz-wzzm HIS ATTORNEY June 1, 1948. R.E. MUMMA CALCULATING DEVICE 22 She'ets-Sheet 11 Filed Dec. 27, 1943 jmvznron ROBERT E. luumm A 4" b 8 PPM av MM HIS ATTORNEY FIG.

a, 1948. R. E. Mum 2,442 42 CALCULATING DEVICE Filed Dec. 27, 1943 v 22Sheets-Sheet 12 j INVENTOR 3 -ROBERT E'. MUHMA gay Q T ms ATTORNEY R. E.MUMMA 5 2,442,428

CALCULATING DEVICE Filed Dec. 27, 1943 22. Sheets-Sheet 13 IMPULSEGENERATOR UNITS INVENTOR ROBERT E. MUMMA BY W 5 ms ATTORNEY June 1,,1948.

Filed Dec. 27, 1943 IMPULSE GENERATOR TENS R. E. MUMMA CALCULATINGDEVICE 22 Sheets-Sheet l4 PRIMES "o" TUBE INVENTOR ROBERT E. MUM/WA HISATTORNEY June 1, ms.

Filed Dec. 27, 1945 IMPULSE GENERATOR HUNDREDS I20 FIG. i5

R. E. MUMMA CALCULATING DEVICE PRIMES "0 was 22 Sheets-Sheet l5 PRlMES"I" TUBE F lNVE NTOR ROBERT E. MUMMA av M HIS ATTORNEY 5e 1, 1948. MUMMACALCULATING DEVICE Filed Dec. '27, 1943 IMPULSE GENERATOR THOUSANDSPRIMES "0 TUBE 22 Sheets-Sheet l6 PRIMES l' TUBE .INVENTOR ROBERT E.MUMMA R. E. MUMMA CALCULATING DEVICE June 1, 1948.

22 Sheets-Sheet 1'! Filed Dec. 27, 1943 man. ..a mmZEL 8 J.- 85805 2EmoZmwzww 22.

mmDh muiEm mvemon ROBERT E. MUMMA HIS ATTORNEY June 1, 1948.

Filed Dec. 27, 1943 IMPULSE GENERATOR HUNDRED THOUSANDS FIG.I8

R. E. MUMMA CALCULATING DEVICE 22 Sheets-Sheet 1s PRIMES "o" TUBE PRIMESTUBE INVENTOR ROBERT E. MUMMA as ATTORNEY i June 1, 1948. R. E. MUMMA2,442,428

CALCULATING DEVICE Filed Dec. 27, 1943 22 Sheets-Sheet l9 STAGE I 7STAGE II STAGE III STAGE N DENOMINATIONAL DISTRIBUTOR FIG.I9

IN V E NTO R ROBERT E. MUMMA HIS ATTORNEY June 1, 1948. R. E. MUMMACALCULATING DEVICE 22 Sheets-Sheet 20 Filed Dec. 27, 1943 .EZD JOEHZOQmosh ON 6E mwn H moaFm H E M M VE A T m

